Don't forget Bong, Mcguire, Sakai, Nishizawa, Fonck, Mannock, Rickenbacker, Rall, Barkhorn, Iwamoto, Juutilainen, Kozuhedub, Pokryshkin, McCampbell, Gabreski, Preddy, Pattle, Tuck, Albert, Lucchini, Skalski, McConnell, Jabara, Cunningham, each was either the top or among the top from their nation or conflict. But really for me, it has to be MANFRED.